With this bait, TB won't play possum

Tuberculosis isn't a problem just for people. It strikes animals, and curtailing its spread in the wild can prove daunting. The only effective tuberculosis (TB) vaccine must be injected, so prevention requires capturing uninfected animals.

That obstacle may disappear, however, thanks to a new, oral form of the vaccine that can be put in animal baits. Created to treat wild possums, this new preparation may also be useful for vaccinating people.

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